Fatal error: Uncaught Error: Class "FluidTYPO3\Vhs\ViewHelpers\Extension\AbstractExtensionViewHelper" not found in /var/www/html/dev.hallescherfc.de/vendor/fluidtypo3/vhs/Classes/ViewHelpers/Extension/IconViewHelper.php:21 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/fluidtypo3/vhs/Classes/ViewHelpers/Extension/IconViewHelper.php on line 21